title: Folate supplementation and methotrexate treatment in rheumatoid arthritis: a review.
mesh_terms: D018501:Antirheumatic Agents / Q000009:adverse effects / Q000627:therapeutic use*; D001172:Arthritis, Rheumatoid / Q000188:drug therapy*; D004334:Drug Administration Schedule; D004359:Drug Therapy, Combination; D005492:Folic Acid / Q000008:administration & dosage*; D005493:Folic Acid Antagonists / Q000009:adverse effects / Q000627:therapeutic use*; D006801:Humans; D008727:Methotrexate / Q000009:adverse effects / Q000627:therapeutic use*
chemical_list: D018501:Antirheumatic Agents; D005493:Folic Acid Antagonists; D005492:Folic Acid; D008727:Methotrexate